CN103853060A - Electronic switch controller, control method, electronic switch and electronic equipment - Google Patents

Electronic switch controller, control method, electronic switch and electronic equipment Download PDF

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Publication number
CN103853060A
CN103853060A CN201210507802.2A CN201210507802A CN103853060A CN 103853060 A CN103853060 A CN 103853060A CN 201210507802 A CN201210507802 A CN 201210507802A CN 103853060 A CN103853060 A CN 103853060A
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China
Prior art keywords
signal
power supply
processor
load
data
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CN201210507802.2A
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Chinese (zh)
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CN103853060B (en
Inventor
刘征兵
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SHANGHAI BAICHENG ELECTRONICS CO Ltd
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SHANGHAI BAICHENG ELECTRONICS CO Ltd
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Priority to CN201210507802.2A priority Critical patent/CN103853060B/en
Priority to US14/368,050 priority patent/US9762157B2/en
Priority to DE112012005453.9T priority patent/DE112012005453B4/en
Priority to PCT/CN2012/087189 priority patent/WO2014082358A1/en
Publication of CN103853060A publication Critical patent/CN103853060A/en
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Publication of CN103853060B publication Critical patent/CN103853060B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/0004—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/60—Controlling or determining the temperature of the motor or of the drive
    • H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37431—Temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42237—Pwm pulse width modulation, pulse to position modulation ppm
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45127—Portable, hand drill
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P31/00—Arrangements for regulating or controlling electric motors not provided for in groups H02P1/00 - H02P5/00, H02P7/00 or H02P21/00 - H02P29/00

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

The invention discloses an electronic switch controller, a control method, an electronic switch and electronic equipment. The controller comprises a stabilized power supply, a processor and a drive circuit. The processor is connected between the stabilized power supply and a measuring device, and is used for receiving working parameters of a power supply, a load and the electronic switch that are measured by the measuring device, reading duty ratio parameters that match the working parameters, calculating new duty ratio by the use of the duty ratio parameters and the working parameters, adjusting current control signal to a pulse-modulated signal of the new duty ratio and sending the pulse-modulated signal to the drive circuit. The drive circuit is connected between the stabilized power supply and the load, and is used for controlling rotating speed of a motor in the load. According to the invention, the volume of the electronic switch is minimized, the effect of long low-speed stroke is realized, and the electronic equipment can be used by users to operate at an accurate working point.

Description

The controller of electronic switch and control method, electronic switch and electronic equipment
Technical field
The present invention relates to electrical equipment field, in particular to a kind of controller and control method, electronic switch and electronic equipment of electronic switch.
Background technology
As shown in Figure 1, the main control part being currently applied in the electronic switch in electric tool of lithium battery is mainly combined by microcontroller (MCU/ single-chip microcomputer), DC stabilized voltage supply (LDO) and PWM driving circuit.
Microcontroller, stabilized voltage supply and PWM driving circuit in the main control part of this electronic switch separate, and its principle of work is as follows:
DC stabilized voltage supply (being LDO) is for providing single-chip microcomputer that stable work power supply is provided, single-chip microcomputer can be worked normally, after single-chip microcomputer is started working, gather voltage signal, the temperature signal of lithium battery, speed-regulating potentiometer signal, load current signal etc., and the signal collecting is processed, output pulsed modulation (PWM) signal, this pulsed modulation (PWM) signal is controlled the running speed of motor by motor/load P WM driver module, can pass through the duty of I/O port controlling lighting lamp for work simultaneously.
But the electronic devices and components of above-mentioned electronic switch are many, complex circuit designs, makes that circuit board (PCBA) size is large, production cost is high.
Fig. 2 is according to the schematic diagram of the pulse-modulated signal of prior art.As shown in Figure 2, the pulse-modulated signal of existing electronic switch adopts the single hop showing in single hop Linear Control figure to arrive (x2, y2) for (x1, y1).
In Fig. 2, taking switch over travel (travel) as x axle, pulsed modulation dutycycle (PWM duty) is output as y axle, and the relation that curve y and x are controlled in pulsed modulation (PWM) output that can have a switch according to Fig. 2 is as follows:
When (x<x1): y=0%;
When (x1≤x<x2): y=k1*x+b1; Wherein k1=(y2-y1)/(x2-x1);
b1=(y1-k1*x1)；
When (x >=x2): y=100%.
Controlling curve due to this pulsed modulation output is single hop Linear Control, i.e. (x1 in figure, y1) to (x2, y2) straight-line segment, can show that the output of pulsed modulation dutycycle is larger when speed-regulating potentiometer stroke is shorter, cause the rotating speed of motor higher, thereby brought the shake of motor to make user use the impact point of electric tool (as electric drill, electric hammer) work inaccurate, inconvenient user uses.
In addition, use existing electronic switch cannot know the information about power of battery, and gather under the device interface and the unmatched situation of electronic switch input interface of battery or load parameter, need more alias or increase connection device of more cost, poor and waste time and energy with other equipment connection matchings.
As from the foregoing, in existing electronic switch, electronic component is many, and it controls curve is single hop Linear Control, makes that electronic switch design is complicated, PCB layout is difficult and switch low speed stroke is short, thereby cause the large and uncontrollable electrical equipment of electronic switch volume in working point work accurately.
Many for electronic component in electronic switch in prior art, and it controls curve is single hop Linear Control, make that electronic switch design is complicated, PCB layout is difficult and switch low speed stroke is short, thereby cause the problem of the large and uncontrollable electrical equipment of electronic switch volume in working point work accurately, not yet propose at present effective solution.
Summary of the invention
Many for electronic component in electronic switch in prior art, and it controls curve is single hop Linear Control, make that electronic switch design is complicated, PCB layout is difficult and switch low speed stroke is short, thereby cause the problem of the large and uncontrollable electrical equipment of electronic switch volume in working point work accurately, effective solution is not yet proposed at present, controller and control method, electronic switch and the electronic equipment that a kind of electronic switch is provided of the present invention for this reason, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of controller of electronic switch, this controller comprises: stabilized voltage supply, processor and driving circuit, wherein, stabilized voltage supply, be connected with power supply, be used to processor and driving circuit that electric energy is provided; Processor, be connected between stabilized voltage supply and measurement mechanism, for receiving the running parameter of power supply, load and electronic switch that measurement mechanism measures, and read the duty cycle parameters matching with running parameter, use duty cycle parameters and running parameter to calculate and obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, pulse-modulated signal is sent to driving circuit; Driving circuit, is connected between stabilized voltage supply and load, drives signal, and will drive signal to send to the rotating speed of load control circuit with the motor in control load for using pulse-modulated signal to generate.
Further, the running parameter of power supply, load and electronic switch that measurement mechanism measures is simulating signal, and wherein, processor comprises: input port, is connected the simulating signal measuring for receiving measurement mechanism with measurement mechanism; Signal processor, is connected with input port, for simulating signal is converted to digital signal; First microprocessor, be connected with signal processor, for reading the duty cycle parameters matching with digital signal, and use duty cycle parameters and running parameter calculating to obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, pulse-modulated signal is sent to driving circuit.
Further, running parameter comprises: the voltage signal that carries the trigger positional information of electronic switch, wherein, first microprocessor comprises: the first sub-processor, be connected with signal processor, for reading the run-length data of the electronic switch matching with the voltage signal of trigger positional information that carries electronic switch; The second sub-processor, is connected with the first sub-processor, and for reading the duty cycle parameters matching with current run-length data, wherein, duty cycle parameters comprises Slope Parameters k and intercept parameter b; The first counter, is connected with the second sub-processor, calculates for current run-length data is carried out to linearity by following formula, obtains the new dutycycle of control signal, and wherein, formula is: y=kx+b, and x is current run-length data, y is new dutycycle; The 3rd sub-processor, is connected with the first counter, for adjusting the modulated pulse signal that the dutycycle of current control signal is new dutycycle; The first output port, is connected with the 3rd sub-processor, for pulse-modulated signal is sent to driving circuit.
Further, running parameter comprises: the voltage signal of power supply, the temperature signal of power supply, the current signal of load and the temperature signal of load control circuit, wherein, signal processor comprises: the first subsignal processor, be connected between input port and microprocessor, for the voltage signal of power supply being converted to the capacity data of power supply; The second subsignal processor, is connected between input port and microprocessor, for the temperature signal of power supply being converted to the temperature data of power supply; The 3rd subsignal processor, is connected between input port and microprocessor, for the current signal of load being converted to the current data of load; The 4th subsignal processor, is connected between input port and microprocessor, for the temperature signal of load control circuit being converted to the temperature data of load control circuit.
Further, the second sub-processor comprises: the 4th sub-processor, respectively with the first subsignal processor, the second subsignal processor, the 3rd subsignal processor, the 4th subsignal processor connects, be used for the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit and pre-conditioned contrast, and at the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit meets in pre-conditioned situation, read the duty cycle parameters matching with current run-length data, in the case of the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit do not meet pre-conditioned, generate guard signal.
Further; the 3rd sub-processor comprises: the 6th sub-processor; be connected between the 5th sub-processor and driving circuit; for current control signal being converted to stop signal according to guard signal; and stop signal is sent to driving circuit and/or stabilized voltage supply; so that driving circuit and/or stabilized voltage supply quit work, and load is quit work.
Further, pre-conditioned comprising: the first preset range, the second preset range, the 3rd preset range and the 4th preset range, wherein, the 4th sub-processor comprises: the 7th sub-processor, be connected between the first subsignal processor and the 5th sub-processor, for the capacity data of power supply and the first preset range are contrasted, and do not meet the first preset range formation voltage guard signal at the capacity data of power supply; The 8th sub-processor, be connected between the second subsignal processor and the 5th sub-processor, for the temperature data of power supply and the second preset range are contrasted, and do not meet the second preset range at the temperature data of power supply, generate the first temperature protection signal; The 9th sub-processor, be connected between the 3rd subsignal processor and the 5th sub-processor, for the temperature data of load control circuit and the 3rd preset range are contrasted, and do not meet the 3rd preset range in the current data of load, generate current protection signal; The tenth sub-processor; be connected between the 4th subsignal processor and the 5th sub-processor; for the temperature data of load control circuit and the 4th preset range are contrasted; and do not meet the 4th preset range at the temperature data of load control circuit, generate the second temperature protection signal.
Further, processor also comprises: the second microprocessor, be connected between input port and stabilized voltage supply, for in the time that input port receives the running parameter of the power supply that measures of measurement mechanism and load, generate enabling signal, starting stabilized voltage supply provides electric energy for processor and driving circuit.
Further, stabilized voltage supply is two, is respectively the first sub-stabilized voltage supply and the second sub-stabilized voltage supply, and wherein, the first sub-stabilized voltage supply, is connected between power supply and processor, is used to processor that electric energy is provided; The second sub-stabilized voltage supply, is connected between power supply, processor and driving circuit, for starting to provide electric energy to driving circuit after obtaining the enabling signal of processor; Also for stopping providing electric energy to driving circuit after obtaining the stop signal of processor.
Further, processor also comprises: the second output port, be connected between signal processor, the second sub-processor and the second microprocessor, for digital signal, stop signal and enabling signal being sent to indicating device by versatile interface, to show the duty of power supply, electronic switch and load; Also for realize the communication of controller and communication apparatus by versatile interface.
To achieve these goals, according to an aspect of the present invention, provide a kind of electronic switch, this electronic switch comprises: trigger, measurement mechanism, load control circuit and the controller for electronic switch; Trigger, is connected with power supply, for being switched on or switched off the circuit between power supply and electronic switch, and produces the stroke of electronic switch; Measurement mechanism, is connected between power supply, load, trigger and controller, for measuring the running parameter of power supply, load and trigger, and the running parameter of power supply, load and trigger is sent to controller; Controller, be connected between measurement mechanism and load, for receiving the running parameter of power supply, load and trigger that measurement mechanism measures, and adjusting according to running parameter after current control signal obtains pulse-modulated signal, use pulse-modulated signal to generate control signal, and control signal is sent to load control circuit; Load control circuit, is connected with controller, for using the rotating speed of motor of control signal control load.
Further, measurement mechanism comprises: the first temperature sensor, is connected with power supply, for measuring the temperature signal of power supply; Voltage sensor, is connected with power supply, for measuring the voltage signal of power supply; Speed-regulating potentiometer, is connected with trigger, for measuring the voltage signal of the trigger positional information of carrying electronic switch; Current sensor, is connected with load, for the current signal of sensing lead; The second temperature sensor, is connected with load control circuit, for the temperature signal of sensing lead control circuit.
Further, electronic switch also comprises: sub-switch, is connected between load control circuit and load, for being switched on or switched off the circuit between load control circuit and load.
To achieve these goals, according to an aspect of the present invention, a kind of electronic equipment is provided, this electronic equipment comprises: indicating device, electronic switch, wherein, indicating device, is connected with the second output port of electronic switch middle controller, is used to indicate the duty of power supply, electronic switch and load.
Further, indicating device comprises: the first pilot lamp, is used to indicate the duty of power supply and the duty of electronic switch; Illuminating lamp, for being user illumination in the time that electronic equipment is in running order.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method for electronic switch, the method comprises: the work at present parameter that receives electronic switch; Read the duty cycle parameters matching with work at present parameter; Use duty cycle parameters and running parameter to carry out linearity and calculate, to obtain new dutycycle; Current control signal is adjusted, to obtain the pulse-modulated signal of dutycycle as new dutycycle; Use the rotating speed of motor in pulse-modulated signal control load.
Further, work at present parameter comprises the current run-length data of electronic switch, and wherein, the step that reads the duty cycle parameters matching with work at present parameter comprises: read the duty cycle parameters matching with current run-length data, wherein, duty cycle parameters comprises Slope Parameters and intercept parameter; Current run-length data is carried out to linearity by following formula and calculate, obtain new dutycycle, wherein, formula is: y=kx+b, and y is new dutycycle, and k is Slope Parameters, and b is intercept parameter, and x is current run-length data.
Further, work at present parameter comprises: the capacity data of power supply, the current data of power supply, the current data of load and the temperature data of load control circuit, wherein, before reading the duty cycle parameters matching with work at present parameter, method comprises: the temperature data that the temperature signal of the current signal/load control circuit of the temperature signal/load of the voltage signal/power supply of power supply is converted to respectively to the current data/load control circuit of the temperature data/load of the capacity data/power supply of power supply; By the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit and pre-conditioned contrast, and in the case of the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit meet pre-conditioned, read the duty cycle parameters matching with current run-length data x.
Further, work at present parameter comprises: the capacity data of power supply, the temperature data of power supply, the current data of load and the temperature data of load control circuit, wherein, before reading the duty cycle parameters matching with work at present parameter, by the capacity data of power supply, the temperature data of power supply, the current data of load, after the temperature data of load control circuit and pre-conditioned contrast, method also comprises: at the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit does not meet in pre-conditioned situation, generate guard signal, according to guard signal, current control signal is converted to stop signal, and stop signal is sent to driving circuit and/or stabilized voltage supply, so that driving circuit and/or stabilized voltage supply quit work, and load is quit work.
Pass through the application, stabilized voltage supply, driving circuit and processor are integrated in controller, after obtaining the running parameter of power supply, load and electronic switch, read the duty cycle parameters matching with running parameter, and calculate new dutycycle, then the dutycycle of pulse-modulated signal is adjusted into new dutycycle, then use the pulse-modulated signal after adjusting to utilize driving circuit to generate driving signal, the application's embodiment uses multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation.Pass through the application, having solved and having controlled curve in electronic switch is single hop Linear Control, make switch low speed stroke short, thereby cause the problem of uncontrollable electrical equipment in working point work accurately, realize electronic switch volume little, the effect that low speed stroke is long, makes user can use electrical equipment in working point work accurately.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the electronic switch of prior art;
Fig. 2 is according to the schematic diagram of the pulse-modulated signal of prior art;
Fig. 3 is according to the structural representation of the controller for electronic switch of the embodiment of the present invention;
Fig. 4 is the detailed structure schematic diagram according to the controller for electronic switch of the embodiment of the present invention;
Fig. 5 is according to the schematic diagram of two of the embodiment of the present invention sections of linear impulsive modulation signal curves of output;
Fig. 6 is according to the schematic diagram of three of the embodiment of the present invention sections of linear impulsive modulation signal curves of output;
Fig. 7 is the inner structure schematic diagram according to the controller of the embodiment of the present invention; And
Fig. 8 is according to the process flow diagram of the control method for electronic switch of the embodiment of the present invention.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 3 is according to the structural representation of the controller for electronic switch of the embodiment of the present invention.Fig. 4 is the detailed structure schematic diagram according to the controller for electronic switch of the embodiment of the present invention.
As shown in Figure 3 and Figure 4, this controller comprises: stabilized voltage supply 30, processor 50 and driving circuit 10, and wherein, stabilized voltage supply 30, is connected with power supply, is used to processor 50 and driving circuit 10 that electric energy is provided; Processor 50, be connected between stabilized voltage supply 30 and measurement mechanism, for receiving the running parameter of power supply, load and electronic switch that measurement mechanism measures, and read the duty cycle parameters matching with running parameter, use duty cycle parameters and running parameter to calculate and obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, pulse-modulated signal is sent to driving circuit 10; Driving circuit 10, is connected between stabilized voltage supply 30 and load, drives signal, and will drive signal to send to the rotating speed of load control circuit with the motor in control load for using pulse-modulated signal to generate.
Adopt the application's the controller for electronic switch, by stabilized voltage supply 30, processor 50 and driving circuit 10 are integrated in controller, instead of use electronic devices and components to form stabilized voltage supply 30 and driving circuit 10, thereby simplify circuit design and device space, the volume that has reduced controller, reduces costs; In addition, processor 50 is after obtaining the running parameter of power supply, load and electronic switch, read the duty cycle parameters matching with running parameter, and calculate new dutycycle, then the dutycycle of pulse-modulated signal is adjusted into new dutycycle, then uses the pulse-modulated signal after adjusting to utilize driving circuit 10 to generate driving signal, the application's embodiment uses multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation.Solve in electronic switch electronic component by the application many, and it controls curve is single hop Linear Control, make that electronic switch design is complicated, PCB layout is difficult and switch low speed stroke is short, thereby cause the problem of the large and uncontrollable electrical equipment of electronic switch volume in working point work accurately, realize and simplified circuit design, the long effect of low speed stroke, made user can use electrical equipment in working point work exactly.
The present invention is pulsed modulation driving circuit by stabilized voltage supply 30, driving circuit 10() and processor 50 be integrated into chip.Wherein, stabilized voltage supply 30 is integrated LDO, in certainly integrated chip, also comprises operational amplifier, timer etc.
Controller 7(shown in Fig. 4 is special integrated chip ASIC) can be used as the controller in the above embodiments of the present application; processor 50 and stabilized voltage supply 30 and driving circuit 10 are integrated in controller; can realize the control, current protection, voltage protection, temperature protection, battery electric quantity instruction, operating illumination of the needed motor rotary speed of conventional electric instrument, with other products or devices communicating and burning program function, realized and reduced electronic switch design difficulty, reduce the effect of electronic switch volume and Based Intelligent Control electronics switch.
Particularly, controller 7 is integrated one or more wafer, this comprising: first microprocessor (being CPU), erasable program storage (being FLASH ROM), erasable data-carrier store (being EEPROM), timer (being TIMER), pulsed modulation (PWM) drive touches piece (being PWM driver module), D.C. regulated power supply module (LDO) and input/output port.
In addition, the versatile interface 17 shown in Fig. 4 can be multifunctional multiplexing interface, and it can be for battery electric quantity instruction, operating illumination, with other products or devices communicating, also can programme to controller 7.
According to above-described embodiment of the application, the running parameter of power supply, load and electronic switch that measurement mechanism measures is simulating signal, and wherein, processor 50 can comprise: input port, be connected the simulating signal measuring for receiving measurement mechanism with measurement mechanism; Signal processor, is connected with input port, for simulating signal is converted to digital signal; First microprocessor, be connected with signal processor, for reading the duty cycle parameters matching with digital signal, and use duty cycle parameters and running parameter calculating to obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, pulse-modulated signal is sent to driving circuit 10.
Particularly, processor 50 can comprise: input port receives the simulating signal that measurement mechanism measures, then the simulating signal receiving is converted to digital signal by signal processor, first microprocessor reads the duty cycle parameters matching with digital signal, and use duty cycle parameters and running parameter calculating to obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, pulse-modulated signal is sent to driving circuit 10.Wherein, signal processor can be the analogue signal processor in Fig. 4, can comprise multi-channel analog signal converter (being ADC), analog computing amplifier (OPA) and analog comparator.
In above-described embodiment of the application, running parameter comprises: the voltage signal that carries the trigger positional information of electronic switch, wherein, first microprocessor comprises: the first sub-processor, be connected with signal processor, for reading the run-length data of the electronic switch matching with the voltage signal of trigger positional information that carries electronic switch; The second sub-processor, is connected with the first sub-processor, and for reading the duty cycle parameters matching with current run-length data x, wherein, duty cycle parameters comprises Slope Parameters k and intercept parameter b; The first counter, is connected with the second sub-processor, calculates for current run-length data x is carried out to linearity by following formula, obtains the dutycycle y of control signal, and wherein, formula is: y=kx+b; The 3rd sub-processor, is connected with the first counter, is that dutycycle is the modulated pulse signal of y for adjusting current control signal; The first output port, is connected with the 3rd sub-processor, for pulse-modulated signal being sent to driving circuit 10.
Particularly, also be trigger when pressing switch 3() time, driving circuit 10 is connected power supply, speed-regulating potentiometer links simultaneously, input port obtains measurement mechanism and measures to obtain simulating signal, these signals comprise: battery voltage signal, battery temperature signal, power device temperature signal, speed-regulating potentiometer signal, load current signal, then these simulating signals are converted to digital signal by the analogue signal processor in processor 50, first microprocessor reads the duty cycle parameters matching with this digital signal, then use duty cycle parameters and running parameter to calculate and obtain new dutycycle, and current control signal is adjusted into the pulse-modulated signal that dutycycle is new dutycycle, then this signal is sent to driving circuit 10.
Fig. 5 is according to the schematic diagram of two of the embodiment of the present invention sections of linear impulsive modulation signal curves of output.Fig. 6 is according to the schematic diagram of three of the embodiment of the present invention sections of linear impulsive modulation signal curves of output.
Particularly, as shown in Figure 5 and Figure 6, first microprocessor can use different control curves according to the specification of the specification of different electrical equipments and electronic switch.
In Fig. 5, taking the stroke (being travel) of electronic switch as x axle, pulsed modulation dutycycle (being PWM duty) is y axle, can show that the relation of y and x is as follows:
When (x<x1): y=0%;
When (x1≤x<x2): y=k1*x+b1, wherein, k1=(y2-y1)/(x2-x1), b1=(y1-k1*x1);
When (x2≤<x3): y=k2*x+b2; Wherein k2=(y3-y2)/(x3-x2), b2=(y2-k2*x2);
When (x >=x3): y=100%.
Processor 50 is in the time controlling electronic switch, and first microprocessor can be preset duty cycle parameters (also i.e. the value of k1 shown in figure, b1, k2 and b2), and default three reference values (being two coordinate figures (x1, y1) in the drawings, (x2, y2)).
In the above-described embodiments, the first sub-processor reads the run-length data of the electronic switch matching with the voltage signal of trigger positional information that carries electronic switch, be the current stroke x of electronic switch in the present embodiment, then the second sub-processor reads the duty cycle parameters (comprising Slope Parameters k and intercept parameter b) matching with current run-length data x:
When (x<x1), Slope Parameters k and intercept parameter b are 0,
When (x1≤x<x2), Slope Parameters k and intercept parameter b are respectively k1 and b1;
When (x2≤x<x3), Slope Parameters k and intercept parameter b are respectively k2 and b2;
When (x >=x3): y=1;
The first counter carries out linearity by formula y=kx+b and calculates, obtain the new dutycycle y of control signal, the 3rd sub-processor, adjusting current control signal is that dutycycle is the modulated pulse signal of new dutycycle y, then by the first output port, pulse-modulated signal is sent to driving circuit 10.
In Fig. 6, also, taking switch over travel (being travel) as x axle, pulsed modulation dutycycle is output as y axle, can show that the relation of y and x is as follows:
When (x<x1): y=0%;
When (x1≤x<x2): y=k1*x+b1; Wherein k1=(y2-y1)/(x2-x1), b1=(y1-k1*x1);
When (x2≤x<x3): y=k2*x+b2; Wherein k2=(y3-y2)/(x3-x2), b2=(y2-k2*x2);
When (x3≤x<x4): y=k3*x+b3; Wherein k3=(y4-y3)/(x4-x3), b3=(y3-k3*x3);
When (x >=x4): y=100%.
In the control curve shown in Fig. 6, processor three preset parameter values that need to prestore: (x1, y1), (x2, y2), (x3, y3).The second sub-processor reads the duty cycle parameters (comprising Slope Parameters k and intercept parameter b) matching with current run-length data x:
When (x<x1): Slope Parameters k and intercept parameter b are 0;
When (x1≤x<x2): Slope Parameters k and intercept parameter b are respectively k1 and b1;
When (x2≤x<x3): Slope Parameters k and intercept parameter b are respectively k2 and b2;
When (x3≤x<x4): Slope Parameters k and intercept parameter b are respectively k3 and b3;
When (x >=x4): y=100%.
Then the disposal route of the first counter and the 3rd sub-processor is same as the previously described embodiments.Shown in Fig. 5 and Fig. 6 first microprocessor ground control method, realized the intellectuality of switch curve of output, can make the low speed stroke of motor in load longer, convenient user, in working point work accurately, is user-friendly to.
Wherein, when press on electronic switch trigger time, speed-regulating potentiometer also with trigger interlock, and use speed-regulating potentiometer to obtain the stroke of trigger.As shown in Figure 7, in the time that trigger promotes from left to right, main contacts is connected namely driving circuit 10 and is connected power supply, because slide and trigger lever are fixed together, promote from left to right trigger, slide also will move from left to right, and slide respectively and potentiometer (carbon film on printed circuit board (PCB)) and potentiometer output point be close together, therefore will produce corresponding change in voltage at potentiometer output point, this voltage change signal is the voltage signal of the trigger positional information of carrying electronic switch that speed-regulating potentiometer collects, and can calculate according to this voltage signal the stroke of speed-regulating potentiometer, also be the stroke of electronic switch.
The control curve of exporting shown in Fig. 5 and Fig. 6 is two sections or multistage Linear Control, when switch over travel larger, the pulsed modulation dutycycle of processor output is larger, and driving circuit 10 is also larger by the rotating speed of load driving circuits (being high-power drive circuit) CD-ROM drive motor; When switch over travel less, the pulsed modulation dutycycle of processor output is less, driving circuit 10 is also less by the rotating speed of high-power drive circuit CD-ROM drive motor, switch can have respectively two sections or multi-section-line linearity curve in whole stroke, wherein each section linearity curve pulsed modulation dutycycle and stroke have independently linear relationship, its corresponding linear relationship slope is different, thereby has realized the intellectuality of switch curve of output.
Due to the proportional relation of the electric current on the motor in pulsed modulation dutycycle and load, pulsed modulation duty is smaller, and the electric current on motor is just less, and motor rotary speed is also just lower.Two sections or multistage pulsed modulation dutycycle (PWM duty) are controlled motor (load) electric current can make low speed stroke time slowly to be increased along with the increase of stroke, thereby make low speed stroke motor (being load) rotation speed change slower, more user-friendly, more convenient user accurately uses electric tool to navigate to working point and working stability.
According to above-described embodiment of the application, running parameter can also comprise: the voltage signal of power supply, the temperature signal of power supply, the current signal of load and the temperature signal of load control circuit, wherein, signal processor comprises: the first subsignal processor, be connected between input port and microprocessor, for the voltage signal of power supply being converted to the capacity data of power supply; The second subsignal processor, is connected between input port and microprocessor, for the temperature signal of power supply being converted to the temperature data of power supply; The 3rd subsignal processor, is connected between input port and microprocessor, for the current signal of load being converted to the current data of load; The 4th subsignal processor, is connected between input port and microprocessor, for the temperature signal of load control circuit being converted to the temperature data of load control circuit.
Particularly, be converted to the capacity data of power supply according to the voltage signal of power supply, the temperature signal of power supply and temperature sensor specification are carried out to computation of table lookup and gone out the temperature of temperature data and the power device of power supply, calculate the current data etc. that flows through motor with the voltage signal corresponding to current signal of the load of obtaining.
And, by above-described embodiment of the application, can obtain the battery capacity of current power supply, the temperature of battery, the temperature of power device, flows through the parameter such as current data of the motor in load, and controller 7 is according to these parameter controls or adjust pulsed modulation dutycycle (PWM duty) and control motor rotary speed, battery electric quantity instruction, lighting lamp for work etc.
In above-described embodiment of the application, the second sub-processor can comprise: the 4th sub-processor, respectively with the first subsignal processor, the second subsignal processor, the 3rd subsignal processor, the 4th subsignal processor connects, be used for the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit and pre-conditioned contrast, and at the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit meets in pre-conditioned situation, read the duty cycle parameters matching with current run-length data x, in the case of the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit do not meet pre-conditioned, generate guard signal.
Particularly, pre-conditioned can comprising: the first preset range, the second preset range, the 3rd preset range and the 4th preset range, wherein, the 4th sub-processor comprises: the 7th sub-processor, be connected between the first subsignal processor and the 5th sub-processor, for the capacity data of power supply and the first preset range are contrasted, and do not meet the first preset range formation voltage guard signal at the capacity data of power supply; The 8th sub-processor, be connected between the second subsignal processor and the 5th sub-processor, for the temperature data of power supply and the second preset range are contrasted, and do not meet the second preset range at the temperature data of power supply, generate the first temperature protection signal; The 9th sub-processor, be connected between the 3rd subsignal processor and the 5th sub-processor, for the current data of load and the 3rd preset range are contrasted, and do not meet the 3rd preset range in the current data of load, generate current protection signal; The tenth sub-processor; be connected between the 4th subsignal processor and the 5th sub-processor; for the temperature data of load control circuit and the 4th preset range are contrasted; and do not meet the 4th preset range at the temperature data of load control circuit, generate the second temperature protection signal.Wherein, the the first/the second/three/four preset range can be according to different electrical equipments and different electronic switch and is different.
According to above-described embodiment of the application; the 3rd sub-processor can comprise: the 6th sub-processor; be connected between the 5th sub-processor and driving circuit 10; for current control signal being converted to stop signal according to guard signal; and stop signal is sent to driving circuit 10 and/or stabilized voltage supply 30; so that driving circuit 10 and/or stabilized voltage supply 30 quit work, and load is quit work.
Particularly, the the first/the second/three/four preset range can be the normal voltage/electric current/temperature range of the normal work of electronic switch.Wherein, when the current data of load is greater than the protective current value that electronic switch sets, or the voltage data of power supply is lower than the minimum operating voltage of setting, or the temperature data of power supply higher or lower than set battery temperature working range time, the 4th sub-processor generates guard signal, then after the 6th sub-processor gets guard signal, current control signal is converted to stop signal, this stop signal can send to driving circuit 10 and/or stabilized voltage supply 30, so that driving circuit 10 and/or stabilized voltage supply 30 quit work, and load is quit work, thereby realize the needed current protection of system electric tool, voltage protection, temperature protection.
In above-described embodiment of the application, processor can also comprise: the second microprocessor, be connected between input port and stabilized voltage supply 30, for in the time that input port receives the running parameter of the power supply that measures of measurement mechanism and load, generate enabling signal, starting stabilized voltage supply 30 provides electric energy for processor and driving circuit 10.
In addition, stabilized voltage supply 30 also can be two, is respectively the first sub-stabilized voltage supply and the second sub-stabilized voltage supply, and wherein, the first sub-stabilized voltage supply, is connected between power supply and processor, is used to processor that electric energy is provided; The second sub-stabilized voltage supply, is connected between power supply, processor and driving circuit 10, provides electric energy for starting after obtaining the enabling signal of processor to driving circuit 10; Also provide electric energy for stopping to driving circuit 10 after obtaining the stop signal of processor.Wherein, stabilized voltage supply 30 can be D.C. regulated power supply.
Shown in Fig. 4, the first D.C. regulated power supply (i.e. LDO in figure) for first microprocessor, comprise that erasable program storage wherein, erasable data-carrier store, timer and analog signal converter, analog computing amplifier, analog comparator provide work power supply; The second D.C. regulated power supply is the i.e. pulsed modulation power driving circuit shown in figure of driving circuit 10() work power supply is provided, to guarantee that driving circuit 10 reliably works effectively.
Particularly, the first sub-stabilized voltage supply provides electric energy for processor, and this electric energy is very little, and the second sub-stabilized voltage supply provides electric energy for starting after obtaining the enabling signal of processor to driving circuit 10; Also provide electric energy for stopping to driving circuit 10 after obtaining the stop signal of processor.In this embodiment, could drive load driving circuits because driving circuit 10 uses a large amount of electric energy, use different stabilized voltage supplys to be respectively driving circuit 10 and processor provides electric energy, improve circuit working stability.In addition, by the duty of enabling signal and stop signal control the second sub-stabilized voltage supply, can, in the situation that not needing a large amount of electric energy to drive load driving circuits, stop the work of the second sub-stabilized voltage supply, thereby reduce the waste of electric energy.
In above-described embodiment of the application, processor can also comprise: the second output port, be connected between signal processor, the second sub-processor and the second microprocessor, for digital signal, stop signal and enabling signal being sent to indicating device by versatile interface, to show the duty of power supply, electronic switch and load, also for by the communication that realizes described controller and described communication apparatus described in versatile interface.
For example, can connect relay indicating light by versatile interface, whether be in running orderly used to indicate electrical equipment, indicate state of charge, the temperature of power supply by electric quantity indicating device, and the temperature of load, and the second output port can also connect communicator by versatile interface, carry out communication with communicator, for example, by versatile interface burning or debugged program.
Controller 7 connects battery capacity indication lamp 14 and lighting lamp for work 13 by versatile interface 17, or with other products or devices communicating.Wherein, communicate and comprise and power brick with other products or equipment, or there is the electrical equipment of rs-232 standard interface, or apparatus such as computer communication, to facilitate design debug, production test and technology upgrading, information management.
Embodiment shown in Fig. 4 also shows electronic switch, this electronic switch can comprise: trigger, measurement mechanism, load control circuit and controller, wherein, trigger, be connected with power supply, for being switched on or switched off the circuit between power supply and electronic switch, and produce the stroke of electronic switch; Measurement mechanism, is connected between power supply, load, trigger and controller, for measuring the running parameter of power supply, load and trigger, and the running parameter of power supply, load and trigger is sent to controller; Controller, be connected between measurement mechanism and load, for receiving the running parameter of power supply, load and trigger that measurement mechanism measures, and adjusting according to running parameter after current control signal obtains pulse-modulated signal, use pulse-modulated signal to generate control signal, and control signal is sent to load control circuit; Load control circuit, is connected with controller, for using the rotating speed of motor of control signal control load.
Adopt the application's electronic switch, by stabilized voltage supply, driving circuit and processor are integrated in controller, and do not use electronic devices and components composition stabilized voltage supply and driving circuit, thereby simplify circuit design and device space, the volume that has reduced controller, reduces costs; In addition, processor is after obtaining the running parameter of power supply, load and electronic switch, read the duty cycle parameters matching with running parameter, and calculate new dutycycle, then the dutycycle of pulse-modulated signal is adjusted into new dutycycle, then uses the pulse-modulated signal after adjusting to utilize driving circuit to generate driving signal, the application's embodiment uses multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation.Solve in electronic switch electronic component by the application many, and it controls curve is single hop Linear Control, make that electronic switch design is complicated, PCB layout is difficult and switch low speed stroke is short, thereby cause the problem of the large and uncontrollable electrical equipment of electronic switch volume in working point work accurately, realize and simplified circuit design, the long effect of low speed stroke, made user can use electrical equipment in working point work accurately.
According to above-described embodiment of the application, measurement mechanism comprises: the first temperature sensor, is connected with power supply, for measuring the temperature signal of power supply; Voltage sensor, is connected with power supply, for measuring the voltage signal of power supply; Speed-regulating potentiometer, is connected with trigger, for measuring the voltage signal of the trigger positional information of carrying electronic switch; Current sensor, is connected with load, for the current signal of sensing lead; The second temperature sensor, is connected with load control circuit, for the temperature signal of sensing lead control circuit.
In addition, electronic switch can also comprise: sub-switch, particularly, sub-switch can be a two-way switch, is connected between load control circuit and load, for being switched on or switched off circuit and the short circuit load output between load control circuit and load.Adopt this sub-switch pressing trigger connection load control circuit power supply, load output short-circuit disconnects, disconnecting consumers circuit supply power supply (namely load output short-circuit) connected in motor output two ends in the time that trigger discharges, thereby can effectively control motor brake (also making motor stop operating immediately), thereby can accurately control the work of motor.
In Fig. 4, also show a kind of electronic equipment, comprising: indicating device and electronic switch, wherein, indicating device, is connected with the second output port of electronic switch middle controller, is used to indicate the duty of power supply, electronic switch and load.
Particularly, power supply provides electric energy, the work of electronic switch control load for electronic switch.
Particularly, indicating device can comprise: the first pilot lamp, is used to indicate the duty of power supply and the duty of electronic switch; Illuminating lamp, for being user illumination in the time that electronic equipment is in running order.
Fig. 8 is that as shown in Figure 8, the method comprises according to the process flow diagram of the control method for electronic switch of the embodiment of the present application:
Step S102, the work at present parameter of reception electronic switch.
Step S104, reads the duty cycle parameters matching with work at present parameter.
Step S106, uses duty cycle parameters and running parameter to carry out linearity and calculates, to obtain new dutycycle.
Step S108, adjusts current control signal, to obtain the pulse-modulated signal of dutycycle as new dutycycle.
Step S110, the rotating speed of motor in use pulse-modulated signal control load.
Adopt the application's method, by after obtaining the running parameter of power supply, load and electronic switch, read the duty cycle parameters matching with running parameter, and calculate new dutycycle, then by the new dutycycle of dutycycle adjustment of pulse-modulated signal, then use the pulse-modulated signal after adjusting to utilize driving circuit to generate driving signal, the application's embodiment uses multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation.Pass through the application, having solved and having controlled curve in electronic switch is single hop Linear Control, make switch low speed stroke short, thereby cause the problem of uncontrollable electrical equipment in working point work accurately, realize the long effect of low speed stroke, made user can use electrical equipment in working point work accurately.
According to above-described embodiment of the application, work at present parameter can comprise the current run-length data of electronic switch, wherein, the step that reads the duty cycle parameters matching with work at present parameter comprises: read the duty cycle parameters matching with current run-length data, wherein, duty cycle parameters comprises Slope Parameters and intercept parameter; Current run-length data is carried out to linearity by following formula and calculate, obtain new dutycycle, wherein, formula is: y=kx+b, and y is new dutycycle, and k is Slope Parameters, and b is intercept parameter, and x is current run-length data.
As shown in Figure 5 and Figure 6, first microprocessor can use different control curves according to the specification of the specification of different electrical equipments and electronic switch.
In Fig. 5, taking the stroke (being travel) of electronic switch as x axle, pulsed modulation dutycycle (being PWM duty) is y axle, can show that the relation of y and x is as follows:
When (x<x1): y=0%;
When (x1≤x<x2): y=k1*x+b1, wherein, k1=(y2-y1)/(x2-x1), b1=(y1-k1*x1);
When (x2≤x<x3): y=k2*x+b2; Wherein k2=(y3-y2)/(x3-x2), b2=(y2-k2*x2);
When (x >=x3): y=100%.
Processor is in the time controlling electronic switch, and first microprocessor can be preset duty cycle parameters (also i.e. the value of k1 shown in figure, b1, k2 and b2), and default three reference values (being two coordinate figures (x1, y1) in the drawings, (x2, y2)).
In the above-described embodiments, the first sub-processor reads the run-length data of the electronic switch matching with the voltage signal of trigger positional information that carries electronic switch, be the current stroke x of electronic switch in the present embodiment, then the second sub-processor reads the duty cycle parameters (comprising Slope Parameters k and intercept parameter b) matching with current run-length data x:
When (x<x1), Slope Parameters k and intercept parameter b are 0,
When (x1≤x<x2), Slope Parameters k and intercept parameter b are respectively k1 and b1;
When (x2≤x<x3), Slope Parameters k and intercept parameter b are respectively k2 and b2;
When (x >=x3): y=1;
The first counter carries out linearity by formula y=kx+b and calculates, obtain the new dutycycle y of control signal, the 3rd sub-processor, adjusting current control signal is that dutycycle is the modulated pulse signal of new dutycycle y, then by the first output port, pulse-modulated signal is sent to driving circuit.
In Fig. 6, also, taking switch over travel (being travel) as x axle, pulsed modulation dutycycle is output as y axle, can show that the relation of y and x is as follows:
When (x<x1): y=0%;
When (x1≤x<x2): y=k1*x+b1; Wherein k1=(y2-y1)/(x2-x1), b1=(y1-k1*x1);
When (x2≤x<x3): y=k2*x+b2; Wherein k2=(y3-y2)/(x3-x2), b2=(y2-k2*x2);
When (x3≤x<x4): y=k3*x+b3; Wherein k3=(y4-y3)/(x4-x3), b3=(y3-k3*x3);
When (x >=x4): y=100%.
In the control curve shown in Fig. 6, processor three preset parameter values that need to prestore: (x1, y1), (x2, y2), (x3, y3).The second sub-processor reads the duty cycle parameters (comprising Slope Parameters k and intercept parameter b) matching with current run-length data x:
When (x<x1): Slope Parameters k and intercept parameter b are 0,
When (x1≤x<x2): Slope Parameters k and intercept parameter b are respectively k1 and b1;
When (x2≤x<x3): Slope Parameters k and intercept parameter b are respectively k2 and b2;
When (x3≤x<x4): Slope Parameters k and intercept parameter b are respectively k3 and b3;
When (x >=x4): y=100%.
Then the disposal route of the first counter and the 3rd sub-processor is same as the previously described embodiments.First microprocessor ground control method shown in Fig. 5 and Fig. 6, has realized the intellectuality of switch curve of output, can make the low speed stroke of motor in load longer, and convenient user, in working point work accurately, is user-friendly to.
In above-described embodiment of the application, work at present parameter can comprise: the capacity data of power supply, the temperature data of power supply, the current data of load and the temperature data of load control circuit, wherein, before reading the duty cycle parameters matching with work at present parameter, method comprises: the temperature data that the temperature signal of the current signal/load control circuit of the temperature signal/load of the voltage signal/power supply of power supply is converted to respectively to the current data/load control circuit of the temperature data/load of the capacity data/power supply of power supply, by the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit and pre-conditioned contrast, and in the case of the temperature data of the current data of the temperature data of the capacity data of power supply, power supply, load, load control circuit meet pre-conditioned, read the duty cycle parameters matching with current run-length data x.
According to above-described embodiment of the application, work at present parameter comprises: the capacity data of power supply, the temperature data of power supply, the current data of load and the temperature data of load control circuit, wherein, before reading the duty cycle parameters matching with work at present parameter, by the capacity data of power supply, the temperature data of power supply, the current data of load, after the temperature data of load control circuit and pre-conditioned contrast, method also comprises: at the capacity data of power supply, the temperature data of power supply, the current data of load, the temperature data of load control circuit does not meet in pre-conditioned situation, generate guard signal, according to guard signal, current control signal is converted to stop signal, and stop signal is sent to driving circuit and/or stabilized voltage supply, so that driving circuit and/or stabilized voltage supply quit work, and load is quit work.
It should be noted that, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the process flow diagram of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
From above description, can find out, the present invention has realized following technique effect: by after obtaining the running parameter of power supply, load and electronic switch, read the duty cycle parameters matching with running parameter, and calculate new dutycycle, then by the new dutycycle of dutycycle adjustment of pulse-modulated signal, then use the pulse-modulated signal after adjusting to utilize driving circuit to generate driving signal, the application's embodiment uses multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation.Solve by the application's ground method that in electronic switch, to control curve be single hop Linear Control, make switch low speed stroke short, thereby cause the problem of uncontrollable electrical equipment in working point work accurately, realize the long effect of low speed stroke, made user can use electrical equipment in working point work exactly.
Use special integrated chip design (integrated LDO by the application, MCU, operational amplifier, timer, analog signal converter, pulsed modulation driver module etc.), integrated lithium electricity electric tool defencive function is also simplified switch manufacture craft and electric tool manufacture craft, thereby simplifies circuit design and device space, reduce costs, and can control motor rotary speed, protection lithium battery bag (comprising electric current, voltage and temperature protection); And, improve motor control curve, use multistage curve controlled, improve low speed stroke, be user-friendly to and hommization operation; In addition, increase battery electric quantity instruction, versatile interface, facilitates Function Extension and application.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (19)

1. a controller for electronic switch, is characterized in that, comprising: stabilized voltage supply, processor and driving circuit, wherein,
Described stabilized voltage supply, is connected with power supply, is used to described processor and described driving circuit that electric energy is provided;
Described processor, be connected between described stabilized voltage supply and measurement mechanism, for receiving the running parameter of described power supply, load and electronic switch that described measurement mechanism measures, and read the duty cycle parameters matching with described running parameter, use described duty cycle parameters and described running parameter to calculate and obtain new dutycycle, after current control signal is adjusted into the pulse-modulated signal that dutycycle is described new dutycycle, described pulse-modulated signal is sent to described driving circuit;
Described driving circuit, is connected between described stabilized voltage supply and described load, drives signal, and send to load control circuit to control the rotating speed of the motor in described load described driving signal for using described pulse-modulated signal to generate.
2. controller according to claim 1, is characterized in that, the running parameter of described power supply, load and electronic switch that described measurement mechanism measures is simulating signal, and wherein, described processor comprises:
Input port, is connected with described measurement mechanism, the described simulating signal measuring for receiving described measurement mechanism;
Signal processor, is connected with described input port, for described simulating signal is converted to digital signal;
First microprocessor, be connected with described signal processor, for reading the duty cycle parameters matching with described digital signal, and use described duty cycle parameters and the calculating of described running parameter to obtain new dutycycle, after described current control signal is adjusted into the pulse-modulated signal that dutycycle is described new dutycycle, described pulse-modulated signal is sent to described driving circuit.
3. controller according to claim 2, is characterized in that, described running parameter comprises: carry the voltage signal of the trigger positional information of described electronic switch, wherein, described first microprocessor comprises:
The first sub-processor, is connected with described signal processor, for reading the run-length data of the described electronic switch matching with the voltage signal of described trigger positional information of carrying described electronic switch;
The second sub-processor, is connected with described the first sub-processor, and for reading the duty cycle parameters matching with described current run-length data, wherein, described duty cycle parameters comprises Slope Parameters k and intercept parameter b;
The first counter, is connected with described the second sub-processor, calculates for described current run-length data is carried out to linearity by following formula, obtain the new dutycycle of control signal, wherein, formula is: y=kx+b, described x is described current run-length data, and described y is described new dutycycle;
The 3rd sub-processor, is connected with described the first counter, for adjusting the modulated pulse signal that the dutycycle of described current control signal is described new dutycycle;
The first output port, is connected with described the 3rd sub-processor, for described pulse-modulated signal is sent to described driving circuit.
4. controller according to claim 3, it is characterized in that, described running parameter comprises: the voltage signal of described power supply, the temperature signal of described power supply, the current signal of described load and the temperature signal of described load control circuit, and wherein, described signal processor comprises:
The first subsignal processor, is connected between described input port and described microprocessor, for the voltage signal of described power supply being converted to the capacity data of described power supply;
The second subsignal processor, is connected between described input port and described microprocessor, for the temperature signal of described power supply being converted to the temperature data of described power supply;
The 3rd subsignal processor, is connected between described input port and described microprocessor, for the current signal of described load being converted to the current data of described load;
The 4th subsignal processor, is connected between described input port and described microprocessor, for the temperature signal of described load control circuit being converted to the temperature data of described load control circuit.
5. controller according to claim 4, is characterized in that, described the second sub-processor comprises:
The 4th sub-processor, respectively with described the first subsignal processor, the second subsignal processor, the 3rd subsignal processor, the 4th subsignal processor connects, be used for the capacity data of described power supply, the temperature data of described power supply, the current data of described load, the temperature data of described load control circuit and pre-conditioned contrast, and at the capacity data of described power supply, the temperature data of described power supply, the current data of described load, the temperature data of described load control circuit meets in described pre-conditioned situation, read the duty cycle parameters matching with described current run-length data, in the case of the temperature data of the current data of the temperature data of the capacity data of described power supply, described power supply, described load, described load control circuit do not meet described pre-conditioned, generate guard signal.
6. controller according to claim 5, is characterized in that, described the 3rd sub-processor comprises:
The 6th sub-processor; be connected between described the 5th sub-processor and described driving circuit; for described current control signal being converted to stop signal according to described guard signal; and described stop signal is sent to described driving circuit and/or stabilized voltage supply; so that described driving circuit and/or stabilized voltage supply quit work, and described load is quit work.
7. controller according to claim 5, is characterized in that, described pre-conditioned comprising: the first preset range, the second preset range, the 3rd preset range and the 4th preset range, and wherein, described the 4th sub-processor comprises:
The 7th sub-processor, be connected between described the first subsignal processor and the 5th sub-processor, for the capacity data of described power supply and described the first preset range are contrasted, and do not meet described the first preset range formation voltage guard signal at the capacity data of described power supply;
The 8th sub-processor, be connected between described the second subsignal processor and the 5th sub-processor, for the temperature data of described power supply and described the second preset range are contrasted, and do not meet described the second preset range at the temperature data of described power supply, generate the first temperature protection signal;
The 9th sub-processor, be connected between described the 3rd subsignal processor and the 5th sub-processor, for the temperature data of described load control circuit and described the 3rd preset range are contrasted, and do not meet described the 3rd preset range in the current data of described load, generate current protection signal;
The tenth sub-processor; be connected between described the 4th subsignal processor and the 5th sub-processor; for the temperature data of described load control circuit and described the 4th preset range are contrasted; and do not meet described the 4th preset range at the temperature data of described load control circuit, generate the second temperature protection signal.
8. according to the controller described in any one in claim 1 to 7, it is characterized in that, described processor also comprises:
The second microprocessor, be connected between described input port and described stabilized voltage supply, when receive the running parameter of described power supply that described measurement mechanism measures and load at described input port, generate enabling signal, starting described stabilized voltage supply provides electric energy for described processor and described driving circuit.
9. controller according to claim 8, is characterized in that, described stabilized voltage supply is two, is respectively the first sub-stabilized voltage supply and the second sub-stabilized voltage supply, wherein,
Described the first sub-stabilized voltage supply, is connected between described power supply and described processor, is used to described processor that described electric energy is provided;
Described the second sub-stabilized voltage supply, is connected between described power supply, described processor and described driving circuit, provides described electric energy for starting after obtaining the enabling signal of described processor to described driving circuit; Also provide described electric energy for stopping to described driving circuit after obtaining the stop signal of described processor.
10. controller according to claim 1, is characterized in that, described processor also comprises:
The second output port, be connected between described signal processor, described the second sub-processor and described the second microprocessor, for described digital signal, stop signal and enabling signal being sent to indicating device by versatile interface, to show the duty of described power supply, electronic switch and load; Also for realize the communication of described controller and communication apparatus by described versatile interface.
11. 1 kinds of electronic switches, is characterized in that, comprising: the controller for electronic switch in trigger, measurement mechanism, load control circuit and claim 1 to 10 described in any one;
Described trigger, is connected with power supply, for being switched on or switched off the circuit between described power supply and electronic switch, and produces the stroke of described electronic switch;
Described measurement mechanism, be connected between described power supply, load, trigger and described controller, for measuring the running parameter of described power supply, load and trigger, and the running parameter of described power supply, load and trigger is sent to described controller;
Described controller, be connected between described measurement mechanism and load, for receiving the running parameter of described power supply, load and trigger that described measurement mechanism measures, and adjusting according to described running parameter after current control signal obtains pulse-modulated signal, use described pulse-modulated signal to generate control signal, and described control signal is sent to described load control circuit;
Described load control circuit, is connected with described controller, for using the rotating speed of the motor of load described in described control signal control.
12. electronic switches according to claim 11, is characterized in that, described measurement mechanism comprises:
The first temperature sensor, is connected with described power supply, for measuring the temperature signal of described power supply;
Voltage sensor, is connected with described power supply, for measuring the voltage signal of described power supply;
Speed-regulating potentiometer, is connected with described trigger, for measuring the voltage signal of the trigger positional information of carrying described electronic switch;
Current sensor, is connected with described load, for measuring the current signal of described load;
The second temperature sensor, is connected with described load control circuit, for measuring the temperature signal of described load control circuit.
13. electronic switches according to claim 11, is characterized in that, described electronic switch also comprises:
Sub-switch, is connected between described load control circuit and load, for being switched on or switched off the circuit between described load control circuit and load.
14. 1 kinds of electronic equipments, is characterized in that, comprising: the electronic switch in indicating device, claim 11 to 13 described in any one, wherein,
Described indicating device, is connected with the second output port of described electronic switch middle controller, is used to indicate the duty of described power supply, electronic switch and load.
15. equipment according to claim 14, is characterized in that, described indicating device comprises:
The first pilot lamp, is used to indicate the duty of described power supply and the duty of electronic switch;
Illuminating lamp, for being user illumination in the time that described electronic equipment is in running order.
The control method of 16. 1 kinds of electronic switches, is characterized in that, comprising:
Receive the work at present parameter of electronic switch;
Read the duty cycle parameters matching with described work at present parameter;
Use described duty cycle parameters and described running parameter to carry out linearity and calculate, to obtain new dutycycle;
Current control signal is adjusted, to obtain the pulse-modulated signal of dutycycle as described new dutycycle;
Use the rotating speed of motor in described pulse-modulated signal control load.
17. methods according to claim 16, is characterized in that, described work at present parameter comprises the current run-length data of described electronic switch, and wherein, the step that reads the duty cycle parameters matching with described work at present parameter comprises:
Read the duty cycle parameters matching with described current run-length data, wherein, described duty cycle parameters comprises Slope Parameters and intercept parameter;
Described current run-length data is carried out to linearity by following formula and calculate, obtain described new dutycycle, wherein, formula is: y=kx+b, and y is described new dutycycle, and k is described Slope Parameters, and b is described intercept parameter, and x is described current run-length data.
18. methods according to claim 16, it is characterized in that, described work at present parameter comprises: the capacity data of described power supply, the current data of described power supply, the current data of described load and the temperature data of described load control circuit, wherein, before reading the duty cycle parameters matching with described work at present parameter, described method comprises:
The temperature signal of the current signal/load control circuit of the temperature signal/load of the voltage signal/power supply of described power supply is converted to respectively to the temperature data of the current data/load control circuit of the temperature data/load of the capacity data/power supply of described power supply;
By the temperature data of the current data of the temperature data of the capacity data of described power supply, described power supply, described load, described load control circuit and pre-conditioned contrast, and in the case of the temperature data of the current data of the temperature data of the capacity data of described power supply, described power supply, described load, described load control circuit meet described pre-conditioned, read the duty cycle parameters matching with described current run-length data x.
19. methods according to claim 18, it is characterized in that, described work at present parameter comprises: the capacity data of described power supply, the temperature data of described power supply, the current data of described load and the temperature data of described load control circuit, wherein, before reading the duty cycle parameters matching with described work at present parameter, by the capacity data of described power supply, the temperature data of described power supply, the current data of described load, after the temperature data of described load control circuit and pre-conditioned contrast, described method also comprises:
In the case of the temperature data of the current data of the temperature data of the capacity data of described power supply, described power supply, described load, described load control circuit do not meet described pre-conditioned, generate guard signal;
According to described guard signal, described current control signal is converted to stop signal, and described stop signal is sent to described driving circuit and/or stabilized voltage supply, so that described driving circuit and/or stabilized voltage supply quit work, and described load is quit work.
CN201210507802.2A 2012-11-30 2012-11-30 The controller and control method of electronic switch, electronic switch and electronic equipment Active CN103853060B (en)

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DE112012005453.9T DE112012005453B4 (en) 2012-11-30 2012-12-21 Controller and control method for electronic switch, electronic switch and electronic device
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DE112012005453T5 (en) 2014-10-23

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